Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.
First Last Prev Next    This bug is not in your last search results.
Bug 1444371 - (CVE-2017-7980) CVE-2017-7980 Qemu: display: cirrus: OOB r/w access issues in bitblt routines
CVE-2017-7980 Qemu: display: cirrus: OOB r/w access issues in bitblt routines
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
: ---
: ---
Assigned To: Red Hat Product Security
impact=important,public=20170315,repo...
: Security
Depends On: 1444372 1444373 1444377 1444378 1444379 1444380 1444382 1444383 1444384 1444385 1444387 1444388 1444390 1444391 1444392 1444393 1444394 1445559
Blocks: 1432498
  Show dependency tree / graph
 
Reported: 2017-04-21 04:59 EDT by Prasad J Pandit
Modified: 2018-07-18 11:19 EDT (History)
39 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1205 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-05-09 11:07:02 EDT
Red Hat Product Errata RHSA-2017:1206 normal SHIPPED_LIVE Important: qemu-kvm security update 2017-05-09 12:29:49 EDT
Red Hat Product Errata RHSA-2017:1430 normal SHIPPED_LIVE Important: qemu-kvm security and bug fix update 2017-06-13 07:26:41 EDT
Red Hat Product Errata RHSA-2017:1441 normal SHIPPED_LIVE Important: qemu-kvm-rhev security and bug fix update 2017-06-14 15:20:20 EDT

  None (edit)
Description Prasad J Pandit 2017-04-21 04:59:32 EDT 
Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is
vulnerable to an out-of-bounds r/w access issues. It could occur while copying
VGA data via various bitblt functions.

A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS OR potentially execute arbitrary code on a host with
privileges of Qemu process on the host.

Upstream patches:
-----------------
  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=026aeffcb4752054830ba203020ed6eb05bcaba8
  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ffaf857778286ca54e3804432a2369a279e73aa7

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/04/21/1
Comment 1 Prasad J Pandit 2017-04-21 05:00:09 EDT 
Acknowledgments:

Name: Jiangxin (PSIRT Huawei Inc.), Li Qiang (Qihoo 360 Gear Team)
Comment 2 Prasad J Pandit 2017-04-21 05:02:18 EDT 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1444373]
Comment 3 Prasad J Pandit 2017-04-21 05:02:41 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1444372]
Comment 9 errata-xmlrpc 2017-05-09 07:09:17 EDT 
This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-6

Via RHSA-2017:1205 https://access.redhat.com/errata/RHSA-2017:1205
Comment 10 errata-xmlrpc 2017-05-09 08:48:54 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:1206 https://access.redhat.com/errata/RHSA-2017:1206
Comment 19 errata-xmlrpc 2017-06-13 03:27:45 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1430 https://access.redhat.com/errata/RHSA-2017:1430
Comment 20 errata-xmlrpc 2017-06-14 11:35:15 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6

Via RHSA-2017:1441 https://access.redhat.com/errata/RHSA-2017:1441
Comment 21 Fedora Update System 2017-07-25 17:24:47 EDT 
qemu-2.7.1-7.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.